My best guess is Convergence or Texture Gradient
<span>The immediate cause of its fall was pressure by the Ottoman Turks. The Ottomans had been fighting
the Byzantines for over 100 years by this time. In 1454, Constantinople
finally fell to them and their conquest of the Byzantine Empire was
complete.</span>
Answer: Expressiveness
Explanation:
Expressiveness is the tendency to conveying any thought, feelings,idea , emotion ,action or value in effective manner so that other can understand it.Clear expression induces the actual meaning behind the thought or words of any person.
According to the question ,expressiveness maintains harmony in family as family members are aware about the feelings and thought of each other which handles their emotional understanding and internal affairs.
President Kennedy was persuaded by MLKs i have a dream speech.